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303 Marine Aerospace Protectant - 1 Gallon *Case of 4* - 30370CASE

$161.99 $359.96
SKU: 78280

Manufacturer Part #: 30370CASE


303 Marine Aerospace Protectant – 1 Gallon (Case of 4) – UV Protectant & Surface Restorer (30370CASE)

Protect and extend the life of your boat’s surfaces with the 303 Marine Aerospace Protectant, now available in a 1-gallon case of 4 for high-volume use and long-term maintenance. This industry-leading UV protectant spray is trusted by marine professionals to restore, protect, and preserve a wide range of surfaces exposed to harsh sun, salt, and environmental elements.

Formulated with advanced UV screening technology, 303 Aerospace Protectant helps prevent fading, cracking, chalking, and discoloration, while leaving behind a clean, non-greasy matte finish—never oily or sticky.

Core Technology & Performance

  • SPF 40 for Marine Gear: Originally developed for aerospace applications, it provides a powerful UV barrier that prevents fading, cracking, and premature aging of materials exposed to intense sun.

  • Non-Greasy Matte Finish: Unlike silicone-based products, it dries to a clear matte finish that is non-slick and won't attract dust, dirt, or sand.

  • Surface Restoration: It chemically bonds to surfaces to restore lost color and luster, making weathered vinyl, rubber, and fiberglass look new again.

  • Safe for Specialized Materials: Formulated to be 100% free of grease-producing oils, it is safe for Hypalon inflatable boats, carbon fiber, Plexiglas, and wet/dry suits.

In The Box

  • (4) 1-Gallon (128 oz) Containers of 303 Marine Aerospace Protectant

  • Integrated pour handles on each jug for easy transferring to spray bottles


Key Features & Benefits

Ultimate UV Protection

  • Blocks harmful UV rays that cause fading and deterioration

  • Helps prevent cracking, chalking, and sun damage

  • Extends the lifespan of marine materials

Restores Like-New Appearance

  • Revives dull, faded surfaces with a natural finish

  • Enhances color without leaving a greasy residue

  • Dries to a dry-touch, non-slip surface

Long-Lasting Protection

  • Creates a protective barrier against salt, dirt, and grime

  • Reduces maintenance and cleaning frequency

  • Ideal for routine care and detailing

Marine-Grade Formula

  • Designed for harsh marine environments

  • Safe for both freshwater and saltwater applications

Bulk Case for Convenience

  • Includes four 1-gallon bottles

  • Perfect for marinas, detailing professionals, or frequent users

  • Cost-effective solution for large boats or fleets


Multi-Surface Application

Safe and effective on:

  • Vinyl seats & cushions

  • Rubber seals & trim

  • Plastics & dashboards

  • Fiberglass & gelcoat (non-slip areas)

  • Inflatable boats & fenders

Not recommended for unfinished fabrics (like suede) or clear plastics where streaking may occur.


Product Specifications

Feature Specification
Model Number 30370CASE
Total Volume 4 Gallons (512 fl. oz.)
Case Weight ~32.4 lbs
Base Formula Water-based (No silicone or petroleum)
UV Protection Duration 30 to 45 days per application
Ideal Temperature Apply above 70°F (21°C) for best results
  • Brand: 303 Products

  • Product Name: Marine Aerospace Protectant

  • Part Number: 30370CASE

  • Size: 1 Gallon per bottle (Case of 4)

  • Finish: Matte, non-greasy

  • Application: Spray on, wipe dry

  • Use: UV protection and surface restoration


Ideal For

The 303 Marine Aerospace Protectant Case is perfect for:

  • Boat owners with large vessels

  • Marine detailers and service providers

  • Marinas and boat rental fleets

  • RV and outdoor equipment maintenance


Why Choose 303 Aerospace Protectant?

  • Industry-trusted UV protection formula

  • Restores and protects without oily residue

  • Easy spray-and-wipe application

  • Safe for a wide range of marine surfaces

  • Bulk packaging for professional use and savings

Application Tip: For maximum efficiency when using a full gallon, utilize a high-volume trigger sprayer. Spray the product onto the surface until evenly wet, then wipe completely dry with a clean microfiber towel. Leaving the product to air dry without wiping can lead to streaking.


WARNING: This product can expose you to chemicals including Ethylbenzene which is known to the State of California to cause cancer, and Ethylene Glycol which is known to the State of California to cause birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.



Manufacturer : 303
Manufacturer Part No : 30370CASE


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